Bringing Energy-Aware Scheduling to x86
summary
Proposal adds a vector-specific disable API for x86 softirqs that lets code disable or enable individual software vectors instead of all softirqs, and prototypes per-handler mask metadata so handlers declare which other softirqs may nest. Implementation includes lock-based deadlock detection used during testing; light RT testing shows it can run without immediate deadlocks but no performance numbers were measured. Networking interaction is complex because many paths implicitly rely on full BH/softirq disable, so adoption is nontrivial.
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